The Added Value of Water, Sanitation, and Hygiene Interventions to Mass Drug Administration for Reducing the Prevalence of Trachoma: A Systematic Review Examining

Table 3

Reported reduction of trachoma prevalence.

Reference	Length of study	Baseline trachoma prevalence		After intervention	Percent reduction	Added value
Cumberland et al., 2008 [13]	3 years	Control	60.7%	54.5%	10.0%	59.2%
		Overall	71.4%	35.6%	50.0%
Khandekar et al., 2006 [14]	3 years	Control	10.2%	5.54%	46.1%
		Intervention	13.8%	02.3%	83.0%
Lansingh et al., 2010 [15]	1 year	Control	49.6%	30.0%
		Intervention	47.7%	21.2%